Lock for the hoods of automobiles.



P. P. BARTMER.

LOCK FOR THE HOODS 0F AUTOMOBILES.

APPUCATION FILED AUG. l2, I916.

Patented Dec. 19, 1916.

2 SHEETS-SHEET I.

ill;

(i as. $58.5

P. P. BARTMER.

LOOK FOR THE HOODS 0F AUTOMOBILES.

APPLICATION FILED Au6.12. I916.

1,208,893. Patented Dec. 19,1916.

2 SHEETSSHEET 2.

mss

PAUL P. ZBABTMER, OF DENVE E, COLORADO.

LOOK FOR THE HOODS OF AUTOMOBILES.

Specification 01 Letters Patent.

PatentedDec. 19, 1916.

Application filed August 12, 1918. Serial No. 114,612.

To all whom it may concern Be it known that I, PAUL P. BARTMER, a subject of the Czar of Russia, residing in the city and county of Denver and State of Colorado, have invented a new and useful Lock for the Hoods of Automobiles, of which the following is a specification.

My invention relates to looks for the hoods of automobiles, and the objects of my invention are, first, to provide locks for the opposite sides or corners of hoods of automobiles that can only be released from the inside of the dash board of the automobile; and sec 0nd, to provide locks for the hoods of automobiles that when locked cannot be unlocked and the hood raised except when the driver 'or owner is present orhis hood key isobtained from him. I attain these objects by the mechanism illustrated in the accompanying drawings, in which:

Figure 1 is a view, partly in section and partly in side elevation, of the improved lock, the bolt thereof being shown engaged by the latch. Fig. 2 is an elevation, partly in section, showing the manner of securing the lower member of the lock to the side bar of the car, the upper member being connected to the hood. Fig. 3 is a, plan view showing a portion of one of the side bars of a car, a portionof the hood, and the lock attached to the said hood and side bar. Fig. 4 is a vertical longitudinal sectional view through the hood and dash board of a car, showing the manner of unlockingthe locks simultaneously by a. hand lever mounted on said dash board. Fig. 5 is: transverse vertical sectional view through the hood and side bars, showing the manner of connecting the latch operating chains or cables with the operating lever mounted on the dash board. Fig. 6 is a horizontal sectional view through one side of the hood showing the locks and the connections extending therefrom to the operating lever; and Fig. 7 is a front view showing the manner of locking the operating lever.

Similar letters of reference refer to similar parts throughout the several views.

Referring to the drawings: The numeral 1 designates the side bars of an automobile; 2 designates the hood and 3' the dash board. These parts are common to all makes of antomobiles and the improved lock is adapted to conform to the difference in the detail construction and arrangement of these parts of the several automobiles on the market, in the most convenient manner.

The locklconsists' of two parts, a fixed socket or barrel 4 that forms the body of the lock and which is attached to the side bar of the automobile, and a movable part which forms the bolt 5 of the lock and which is mounted in a housing 6 which is Secured to the insidesurfaee of the hood.

The fixed member of the improved lock consists of a cylindrical casing or barrel, the lower end of whichis provided with a removable cap 7 that is threaded to it, and which is provided with a hexagonal wrenchreceiving member 8. The opposite end of the cylinder is provided with a flange 9, which is provided with apertures for the reception of bolts 10, which pass through the said apertures and also through registering apertures in the side bar 1, nuts 11 being threaded to said bolts thereby to secure the member 4 to the said side bar.

To the underside of the flange 9 and in line with the axial center ofthe barrel or socket 4 is secured a housing 12, in.which is slidably mounted a latch 13, having a shoulder 14, between which and the outer end of the housing is interposed a coil spring 15, which surrounds the said latch and normally holds the same in position to engage the bolt. The outer end of the housing 12 is slotted and a pin X extends through the latch 13 and into the slot, thereby pre venting the latch from turning This pin X also limits the inward movement of the latch, with respect to the barrel. The latch extends through its housing and through a hole in the shell of the barrel 4 and its inner end is arranged to engage annular lock ing grooves 16 formed on the bolt 5 when the same is inserted in the barrel. The barrel hhas a bore of two diameters. That part having the greater diameter extends substantially two-thirds of the length of the barrel from its lower end, and the remainder of the bore is of less'diameter or of the same diameter as the bolt 5. A shoulder 17 is formed at the junction of the two bores and when the bolt 5 is locked within the barrel its lower portion, which is slightly tapered, extends down below the said shoulder 17 and its lower end is engaged by a cylindrical block 18 which is forcibly held against the said end by an air expansion coil spring 19 which is housed in the barrel, between the saidblock and in 6's 7. when the an 13 is withdrawn to release the bolt 5, the said bolt is thrown clear of the latcli' by the spring actuated block 18, which then rests through The coupling bolt has a short Zcompenagainst the shoulder 17 until the bolt is again inserted in the barrel and locked therein.

The hood attached part of my lock comprises the cylindrical housing 6, upon which is formed a plate 20 thatris secured to the hood by any suitable means, preferably by screws or rivets. The coupllngipin or bolt. 5 is reciprocally mounted in the housing 6,

21 is mounted on a reand a coiled spring duced portion of'the said bolt and bears against a shoulder 22 formed adjacent to its upper end and at its opposite end against .7 a nut 23 that is threaded tovthe lowerend:

of the housln' g 6 the nut-having an aperture whic the couplingbolt passes;-

sating movement in thecasing that permits the cylindrical body portion todraw and hold the hood down against the frame with-a re 'silient pulling tension that holds thehood firmly and tightl against the frame and ob-' yiates any possib e rattling of it when the car is running. In order that the coupling bolt gmay lock readily to'the barrel 4, it is, ro-

vided with several locking grooves 16', being shown, which are spaced a short (118* tanee apart above the tapered portion of the bolt and permit of the attachment of the.

parts of the lock to the hood and frame of different makes of cars in such relativeposb tions that one of the grooves 16 will-be engaged by the latch 13 and thus lock the bolt side of the housing 6 and also through a slot 25 in the hood, which latter slot is partially covered up by a flange portion 26 that is formed on the stem and that ex tends beyond the slot over onto the outside surface of the hood. The slot 25 permits the stem to slide up and down to the extent of the compensating movement of the coupling bolt 5. Co the hood can he lowe and locked by hand by simply pushing the coupling bolts .on each side down into the barrels 4 until the latch 13' springs into one of the grooves of the coupling bolt, it being assumed that in attaching the two partsof the lock to the opposite sides of the hood and frame, they are a in alinement with each other and in such relative positions that the side edges of .thehood will bear down against uently each side of.

the frailme of the automobile. A plate 6 is mounted in a slideway in the face of the plate 20, so as to cover the slot 25; the pin 24 passes through a hole in this plate and when the bolt 5 is moved up or down the plate 6* is also moved. This plate always 'covers the 'slot 25 and thus prevents dust and grit from entering the housing. The edges of the plate are beveled, and the edges of the slideway are correspondingly undercut, thus preventing the p ate from bccomm detached from the slideway.

%)ne of the, essential features, however, of the invention is to have the lockingbolts operated to uiilock both sides of the hood from the inside of the dash board of the car. and the invention contemplates broadly any meansby which this object may be obtained. Thelocks are therefore, arranged so that they cannot be unlocked except from the inside of the dash board, and the hood unlockinglmechanism that is placed inside of the dash board is arranged to be locked by the'owner or chauffeur or driver of the car when he leaves it in a garage or on the street orJanywhere out of his sight, so that the hood cannot be unlocked and its sides raised and the engine or its codperating mechanism that is within the hood tampered with; and while there are a number of ways in which'this feature of my invention may be carried out, I preferably use the following instrumentalities in efl'ecting itzEach latch 13 is provided with an apertured head 27 at its end, to which one end of a cord or chain 28 is secured; the chain or cord of each forward latch being secured to the latch of the rear lock on that side, as will be understood by reference to 6, so that a pull on the rear latch will efiect a simultaneous pull on the forward latch. The cords or chains 28 pass under pulleys 29 and over pulleys 30, and the end of one of the cords is secured to one end of a centrally mounted and vertically disposed rock lever 31, while the end of the other cord is secured to the other exid of the lever 31, as

will appear by reference to Fig. 5. The

lever 31 is rigidly secured to one end of a bearing pin 32, which is pivotally mounted in the dash board, and which is rigidly secured to or forms an integral part of a hand lever 33, which is located within convenient reach of the driver of the car. It will thus be seen that by turning the lever 31 in the direction of the arrow (see Fi 5) both cords 28 are drawn upon simu taneously and all of the latches 13 are withdrawn, thereby allowing the spring operated blocks 18 in the barrels 4 to shoot the bolts 5 clear of the latches 13; the lower notches 16 of the bolts being farther from the end of the bolt than ,the' distance between the shoulders 17 and the latches 13, so that when the blocks 18 are forced up against lib a 1mg Thfe-lefien 33m? b locked. in; any pie ferr ed-way, In th fdi'awi'ngg,; howevei" the eekend "a? this se pevture sbie wa clans, new and desih td by Letters Patht, 1s: p {I .1. A dash relcas' 1 qnthe hoods 6f automobiles, comprising ajtwmpartloch, the parts of which are a p'te'd to'be secured o the oqd eud he ramaot n automob le, said parts being provided with a coupling pin and a locking bolt adapted to lock to each other, one of said locks being placed at each corner portion of the hood, flexible members extending from the lockin bolt of each lock to the inside of the das and means under the control of the driver of the car for moving the locking boltto unlock the coupling pin and release the hood from the frame.

2. A dash releasing lock for the hoods of automobiles, comprisin the combination of a two-part lock place at'each corner ofthe opposite sides of the hood, one part of which is secured to the hood and the other art is secured to the frame, the part on the cod having means includ' a coupling pin or entering the part on the ame, a lockin bolt on the part of the frame arranged to lock to said coupling pin, and. means, including flexible members connected to the olts of each lock and extendin t6 the inside of the dash, and means inclu ing a lever under the control of the driverguid connected to said flexible members for mov- 1 ing said locking bolt to release said coupling pil nd free said hood from the frame.

'3. In a dash releasing lock for the hoods of automobiles the combination with the hood I and the das of alock comprising two connecting bod portions oneofflwhich connects to the cod andthe other to the frame of an automobile, each of which is provided with looking members that aresprmg controlled in one direction of their operative movements, means b which the locking member of each art ocks to the other partandmeans incl u ing a hand o erat' memer connectedto the inside 0 the ash by which the dri ermay release the locking members to unlock the h from the frame.

a dash releasi 'lock for automobiles, the combinationo the hood, the dash andthefranie, with a lock comprising two pa' ts, one of which is attached'to the hood and tgliied otheifl t'o ghe frame, as resiliently are f'cou in mounts in the'part' the hoodai' i nged to' extend into} the 7 palt qt; are frame a locking 'bolt therein. aa sngea eoiec tfie coupl ng m to. the part, o'n'fth'e frame, and mans, including a I ariidto jel atin device attached tothe dash boar'd fiid'co "ctd'to the locking bolt of he frame for unlocking the lock: and re-% 1; leasinli the' hoqd from the: frame;

5 ja" device of the character described, the combiiiation with the Hood and" frame of -an 511 obile, ofdockingv cans for said so hood co'rii rising barrels, :cu red to said franrife, belie carried by ;ssid- Hood and adapted}tlpsnter saidbarrels, s ring actuate liitc carried byf'said arrels for enga" 'Jj bolts lila'nually o eratedeS mean s 'idr s'imultaneolisly withdrawiiig s/aid latches,, and a lock forsaid manually operate ,means. a

6. In a device of the character described, the combination with the side bars, the dash board and the hood of an automobile, of means for locking said hood to said side bars, comprising barrels secured to said sidd bars, sprin actuated latch-es carried by said barrels, bo ts carried b said hood which are adapted to enter said barrels and be engaged by said latches a lever mounted in said dash board,'flexible connections extending from said latches to said lever which, are adapted to be drawn upon simultaneously to withdraw said latches and release said bolts, and means for locking said lever.

The combination with the side bars, the dash board and the hood of an automo bile, of means for locking the hood to the 1 5 side bars, comprising barrels secured to said side bars, annularly grooved bolts carried by said hood,'and adapted to enter said barrels, spring controlled latches carried by grooved bolts; a lever mounted in said dash board, flexibl means connecting said latches and said Is ver, whereby the latches are simultaneousl withdrawn when the lever is turned, rin operated blocks carried b the barre s fo throwing the bolts clear of the latches whe the said latches are withdrawn, and a lodlr for said lever. a 7 l 8. The combination with the side bars, the dash board and the hood of an automobile, of means for locking the hood to' the side-bars, comprisin socket members which are secured tosaid side bars, 'emsaid barrels forengaging said housmg hers secured adjacent to the corners of said hood, and bolts resiliently mounted said 1 housings havin annular latch regiving grooves, said bo ts being adapted t said sockets, spring actuated latches enter ounted on said socket members for enga ng said grooved bolts, a lever mounted m he dash upward movement of s fd blpcks epd e 'lock for said lever. V

board andfiexible members connecting. said rest on said springs a'nd'iere depresae' e the ends of se dbolts iglin I locked and act to throw-the bolts ,cleef 'lfif. the latches when the 'latche sere 0 .rn. to release the bolts, means fpniiufitmgiiw 9. A lock. forthe hood s] bfeutcmobiles comprising a. barrel adajpted tote; s1 e i 1ria i to the frame cf the autemobile, an haying a bore of twov diameters, a, shoul Ye; ,being formed t the junction of thetwe diaiiwter? a threaded cappn the lcivelgg end of sai bargel, an expansionicoil 'prm" in said baire1,' a, blcck in said barrel, 9. sighed to. be thrown upward against said pulder' by ha e said spring a} to said befiwcl, vhici' is normally. l oiected f ggceves the' upper 'portibn of which lies in dj said tl ousihg and has, a. h6u1der adjece'nt which is mto its t u perrendf, a coil sprin p der and the terpose between said 'sho ape 'tured cap, and a pin exten ectueted latch ding through sai .Skt and threaded f0 eaidl 5 said bolt e ngg epte to enter a d bar d r said lock'and be enga dig seid iatc In testin cn whet-e0 I' e, my signature in pre senceb two witnesses. I

' PAUL P. 'BARTMER. Witnessfiflz.

G. SAREm ELIZABETH SMITH. 

